Post on 29-Mar-2015
n2000 Tomas StephansonCopyright 2000
Case StudyBågen
Tomas Stephansontomas@connectthings.com
322060 2008427
http://www.connectthings.com
n2000 Tomas StephansonCopyright 2000
n2000 Tomas StephansonCopyright 2000
A A
In the Beginning
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Complications
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Solution
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100 Years Later
•Control•Signalling
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Unified Networking TheoryOne Standard to solve all ProblemsAll Services run in One Network
•Early 1980’s ISDN•For all Services up to 128Kbit/s
•Early 1990’s B-ISDN•For all Services up to 2Mbit/s
•Early 2000’s Fiber to the Home•For all Services up to 155Mbit/s
n2000 Tomas StephansonCopyright 2000
Video On Demand• Time-Warner FSN 1994
• 4000 Subscribers 1994
• 500.000 Subscribers 1996
• 750.000 Subscribers 1998
• The Service was
• Video-on-Demand
• Interactive Shopping
• Interactive Gaming
• Interactive Program Service
• US Postal Service
n2000 Tomas StephansonCopyright 2000
Revolution Many Revolutionaries
Hypertext1965
Ted Nelson
A Small Revolutionary1971
Intel 4004
World Wide Web1989
Tim Bernads Lee
Internet1964
Paul Baran
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The Internet Model
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ISP A
Radius
ATM
ISP B
Radius
Internet
IPSDH
IPSDH
ADSL Access
Central Office
IPPPP
L2TPIP
ATMSDH
IPPPP
PPTPIP
EthernetATMADSL
IPPPP
PPTPATMADSL
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TCP/UDP
IP
ATM
SDH
Fiber
Ethernet
IP closer to the media
Fiber
TCP/UDP
IP
Ethernet
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Ethernet
10 Mbit100 Mbit
1.000 Mbit10.000 Mbit
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Network Technology
–Expensive–Slow–One Vendor
Routers
Routed IP
+Cheap+Fast+Simple
Level 3Switching
Switched IP
–Expensive–Complicated+Fast–Not IP-Optimised
ATM
Circut Switched IP
DTM
n2000 Tomas StephansonCopyright 2000
XR
XR
XR
XR
XR
XR
XR
XR
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Different type of Access EquipmentHead EndLocal Premises
Modem 33-56KbitCopper World Wide 10/100/155Mbit
xDSL 1-8MbitCopper Max 4000m10/100/155Mbit
Cable Modem
10-30MbitShared
Coax/Fiber Max City10/100/155Mbit
Ethernet 10/100/1000Mbit 10/100/1000Mbit
UTP5 Max 100m Fiber
n2000 Tomas StephansonCopyright 2000
A Vision
Modem
IP-Plug
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The Condominium Bågen
• 261 Apartments• Take rate of 44-60%• 190$ Entrance fee• 25$ Flat Monthly fee
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In The Apartment
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In The Basement
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Node at Telecom Office
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Peering With the University
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Fiber to the Bookshelf
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Simple WDM system
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DWDM System
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Ethernet ADSL Access
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Radio LAN Link
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Broadband “Done That”
•The Technology: Simple
•The Architecture: Simple
•The Business Model: Difficult
•The Implementation: Simple
•The Cost: Low
•The Service: Internet
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Mr Fleece
HH
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Buisness Model
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What is Broadband
Narrowband
Broadband
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It is not Broadband that is Expensive
It is the
Services
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Security
• It is the Information that has to be Protected
• Not The Network
• Example: 1988 ”The Internet Worm” Philip Morris Jr
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Check List
• Real IP-addresses (Permanent) - Very Good
• Real Dynamic (DHCP) - Good
• Private IP-adresses (NAT) - Bad
• Who owns the Residential Network (for how long)
• How much bandwidth to the Internet
• How many operators in the building
n2000 Tomas StephansonCopyright 2000